1.Single screw for LDPE film 2.Material:38CrMoAIA,SKD61 3.Suit for pvc pipe, ... film,sheet,cable.. 4.Long worklife Single Screw Barrel for LDPE film Diameter30mm-250mmMin.Order1 setMaterials38CrMoAIA42CrMo(JIS SCM440)9Cr18MoVCW6Mo5Cr4V2SKD11,61GH113Discount AvailableApplicationABS ... competitive price, We Emphasis On Cooperation. single screw barrel for LDPE film